The public is invited to a free showing of the acclaimed documentary, "Chasing Ice," which chronicles photographer James Balog's mission to gather evidence of our changing planet. Time-lapse cameras capture glaciers melting. The screening will be following by a discussion with the film's creator, Jeff Orlowksi (a Stanford grad) and three climate change experts from Stanford Woods Institute for the Environment: Terry Root (who is featured in the film), Noah Diffenbaugh and Michael Wara.